If I create characters from different alliances, how much separate content do they experience and at what level do they find themselves on the same linear path?
Technically, there is really no separate pve content. As soon as you hit veteran content at level 50+, you go through the other alliance's zones and do their quests.
The different alliances will never find themselves in the same area, unless that area is Cyrodiil, however the path is always fairly linear.
Interesting thanks, so alts can level up in completely different areas until they hit 50? That sounds cool. How does the scaling of quests work out if you're a level 50 doing quests in another alliance's low-level zone?
Interesting thanks, so alts can level up in completely different areas until they hit 50? That sounds cool. How does the scaling of quests work out if you're a level 50 doing quests in another alliance's low-level zone?
It is a phased veteran zone - you won't be around any of the low level folks from that alliance.